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Sensor Type
Door / Window
Contact Closure / Relay
Normal State
Normally Closed
Ease of Installation
Intermediate (Installs < 60 minutes)
United Security
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2 Inch Gap Contact for Doors, Windows, and More
United Security Products 400-SP Commercial Wide Gap Contact
United Security Products 400-SP Commercial Wide Gap Contact
United Security Products 400-SP Commercial Wide Gap Contact
Item# 79652
Price: Normally $11.40 
Hot Deal $6.63
Free shipping on orders over $175 - See Details


  • Commercial Contact
  • 2.0. Inch Gap
  • CC, OC, SPDT
  • Super Wide Gap
  • 2.30 Inch Gap

Essential Info

The United Security Products 400-SP Commercial Wide Gap Contact is a powerful, reliable magnetic contact that easily installs to monitor a door, window, or other opening. This kit contains a sensor and magnet as well as covers and spacers. Rare Earth Magnets and rhodium metal contacts ensure reliability and allow the sensor to work with a gap of up to 2 inch. Each switch is welded with a solid brass splice in order to provide the strongest connection possible.


  • Rated Voltage: 130VDC
  • Rated Current: 50 Amps
  • Important notes:
    Defective exchanges for identical item within 30 days of purchase. After 30 days, please contact the manufacturer.
    Manufacturer contact information: United Security Products Inc / Emer Call, Tel: (858) 413-0149


    1 Ratings
    5 star: 100%  (1)
    4 star: 0%  (0)
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    1 star: 0%  (0)
    Average Customer Rating
    (1 customer ratings)
    Share your thoughts with other customers
    THOMAS -- dearborn heights, MI   10/11/2011
    This switch is open when not in contact with the magnet. In other words, it is open when the window or door is open and closed when the door is closed.

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